StarLab v3.31

StarLab Feature Highlights

  • Synchronized, color-coordinated multi-channel display
  • Mathematical capabilities (simple two channel math such as A/B, A-B, as well as complex user defined formula).
  • Power and energy density based on user defined laser beam size
  • Time-synched multi-channel logs to a single log file for later review
  • Condit

StarLab Feature Highlights

  • Synchronized, color-coordinated multi-channel display
  • Mathematical capabilities (simple two channel math such as A/B, A-B, as well as complex user defined formula).
  • Power and energy density based on user defined laser beam size
  • Time-synched multi-channel logs to a single log file for later review
  • Conditioning of measurements (Average, Offset subtraction, Scale Factor)
  • Many types of graphical presentation of data including Line, Barchart, Histogram, and Simulated Analog Needle
  • Pass / Fail Limits and Screen Capture
  • Support for the following Ophir Devices: StarBright, StarLite, JunoVega, Nova-II, EA-1, Pulsar, Quasar, USBI

Firmware Upgrades

The StarLab installation package includes device firmware. For firmware upgrades that may have been released after the latest release of StarLab press here


COM Object

Besides their use as standalone, fully featured laser power/energy meters, Ophir devices (StarBright, StarLite, Juno, Vega, Nova II, Pulsar and USBI) can also be used through a COM object control. This allows system integrators to integrate Ophir measurement capabilities with legacy analysis packages

For Ophir "COM object" page, press here.



Is StarLab compatible with Windows 10?

Yes, StarLab 3.20 and higher is compatible with Windows XP / 7 / 8 / 10 - 32 & 64 bit. For more information and to download, see the StarLab page


Why upgrade to StarLab 3 laser measurement software? (And when not to upgrade?)

The big difference between StarLab 3 and 2.4 is also the first difference you'll see: the GUI was completely redone with the aim at usability and keeping focused on your laser and your measurement data. So there are fewer peripherals to distract you and you can minimize various tabs and panels. This makes for a completely different user experience that you're just going to have to see to believe. (Go download it free now and you'll see what I mean.)
There are two other major improvements that I should mention:

  • The numerical display can be made full screen and has a reverse highlighting option so it can be easily seen from across the room, even in dim lighting.
  • Sensors can now be added or removed on the fly; there's no need to restart StarLab

Find out more (and download StarLab) on the product page.


What is the difference between the StarCom and StarLab PC applications?

StarCom is our legacy PC application which connects via RS232 (not USB), for those Ophir instruments having RS232 interface capability (Vega, Nova II, LaserStar and Nova). It performs all basic functions such as real-time data logging, saving data in PC file, off-line data viewing, printing, etc. For a relatively new computer, you'd have to check that it has a serial port to which to connect the meter. The last release of StarCom was in 2008, with all that this implies. StarCom should nevertheless be able to work on a Win7 32 bit PC. More information, including software download, is available at


StarLab is our full-featured PC application that connects via USB to all Ophir USB-speaking instruments (Vega and Nova II meters, as well as Juno, Pulsar, USBI and the Bluetooth-enabled Quasar PC interfaces). In addition to all basic measurement and data logging functions, it also offers a wide range of special functions (including user-defined mathematical functions), multi-channel operation, COM Object for integration with external systems, etc. More information, and software download, is available at


Do I need to uninstall StarLab 2.4 when upgrading to StarLab 3?

When installing StarLab 3, there is usually no need to uninstall or delete StarLab 2.4, although it might be best in order to avoid confusion between the StarLab versions, and to keep the PC clean and tidy. (Only Quasar customers need to keep StarLab 2.4.) 

If you'd like to uninstall the old version, it's best to do so before installing StarLab 3. If you uninstall StarLab 2.4 after installing StarLab 3, you might need to re-register the drivers (and COM object if using it) via "Registration" under the StarLab 3 options menu gear:

Uninstalling StarLab 2.4 will remove the files and folder names created when StarLab 2.4 was originally installed, but will leave/preserve other files and folders with other names created by the user (such as log files or COM automation code files) even if left in the StarLab 2.4 folders, as long as the code files were saved under a name other than the original demo codes we supplied. 


I’ve upgraded to the latest version of StarLab and my meter no longer is supported. What happened?

Whenever we release a new version of StarLab we add support or deal with various other meter-specific issues. This may necessitate upgrading the meter firmware to the latest release. This release is included in the StarLab package and simply enter the Field Upgrade dialog in order to upgrade your meter to be up to date.


How to download and work with StarLab?

To install StarLab on your PC please do the following:

  • Download StarLab V3.31(98.8 MB)
  • Run the file and follow the on-screen instructions
  • After installation is completed, StarLab can be run from your computer

Note: StarLab must be installed with Administrator privileges


How can I communicate with an Ophir instrument using a Linux machine?

All Ophir RS232-speaking instruments can communicate with a Linux machine. There is no dependence on which operating system is being used on the other side – it’s a simple command and response protocol.

Programmers wanting to use commands via RS232 to control and collect data from an Ophir instrument need to refer to Appendix A in the “StarCom” User Manual - ‘Guide to Programmers’ section. This can be downloaded from the “Download – Manuals” section of our website,

We have recently developed a package that enables USB communication with our meters from a Linux machine. It is now in beta-testing and has been released to several selected users. If you'd like to get this package, please contact us.



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StarLab is Ophir Photonics laser measurement software that, together with the appropriate instruments, converts your PC into a multi-channel laser power/energy station.
In this short video we invite you to have a quick tour of the newest release, StarLab version 3.30, and learn what’s new in it.

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Ophir StarLab, laser measurement software various functions & application overview

This video explains the various items on the StarLab screen, and shows you how to perform basic laser measurements.
Part 1 of a series of video segments teaching you how to use StarLab.

Tutorials and Articles

How do you zoom in on a log you’ve taken with StarLab?

Open StarLab and click on File and Open. Select the log file you want to open and click Open. This will load the log file into StarLab. Now to zoom in to a specific section click and hold on the area to the left side of the area you want to zoom in on. Drag the mouse curser to the right as far as you want the section to zoom in on and release the mouse button. You can continue to zoom in in this same way. If you need to zoom out, click and hold anywhere in the zoomed in area and drag to the left and release. It will zoom all the way out. Read more...

When you log energy from multiple sensors in parallel using StarLab, the time stamps in the various channels are synchronized with each other

If, for example, you need to measure energy at various points along an optical setup in order to characterize each stage of your system, you can place a sensor at each location along the way and connect the sensors in parallel to, say, a multi-channel Pulsar, and log the data using the StarLab application. So long as you open all channels in a single window and log from that window, all the channels will be synchronized with the same zero point. Knowing that, you can rely on the time stamps to tell you which pulse in each channel corresponds to which pulse in the other channels.  Read more...

Accessing Vega log files with StarLab

Occasionally it is not possible to measure a laser system directly using StarLab. This can be because the laser system is in a controlled environment where a computer is unable to be installed. The Vega handheld meter can store up to 10 log files into its onboard memory containing up to 5,400 samples each for a total of 54,000 samples. Then the meter can be interfaced to a computer running StarLab to upload the files later.  Read more...

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